Haptic processing of the location of a known property: does knowing what you've touched tell you where it is?
Identifieur interne : 006A80 ( Main/Merge ); précédent : 006A79; suivant : 006A81Haptic processing of the location of a known property: does knowing what you've touched tell you where it is?
Auteurs : Kimberly A. Purdy [États-Unis] ; Susan J. Lederman ; Roberta L. KlatzkySource :
- Canadian journal of experimental psychology = Revue canadienne de psychologie expérimentale [ 1196-1961 ] ; 2004.
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Abstract
The relationship between knowing where a haptic property is located and knowing what it is was investigated using a haptic-search paradigm. Across trials, from one to six stimuli were presented simultaneously to varying combinations of the middle three fingertips of both hands. Participants reported the presence/absence of a target or its location for four perceptual dimensions: rough/smooth, edge/no edge, relative position (right/left), and relative orientation (right/left). Reaction time data were plotted as a function of set size. The slope data indicated no difference in processing load for location as compared to identity processing. However, the intercept data did reveal a cost associated with processing location information. Location information was not obtained for "free" when identity was processed. The data also supported a critical distinction between material and edge dimensions versus geometric dimensions, as the size of the cost associated with processing location was larger for spatial than for intensive stimuli.
PubMed: 15072207
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pubmed:15072207Le document en format XML
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